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四方鉆桿

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我們提供四方鉆桿和六方鉆桿,可以提供最長為16米的方鉆桿。天合方鉆桿由經過全長淬火和回火的AISI 4145H合金棒制成。根據ASTM A370,產品皮下一英寸的硬度范圍285-341布氏硬度,夏比沖擊功大于等于54J。為提高產品的抗摩擦能力,所有的螺紋都涂上了API螺紋脂。所有用于生產方鉆桿的棒料都經過了磁粉探傷和超聲波探傷。

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